20x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack nutrient-combo Built-in pre-filter

Built-in pre-filter

and Top-Max

This spray is intended to be applied to places with undesirable plant growth

Mamba Impact Glove

Recommended Max CFM: 250 CFM

20x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 12 Pack nutrient-combo Built-in pre-filterNordic Pure Half Inch Ring Panel AC Furnace Air Filters consist of an internal frame bonded between flat layers of two different types of electrostatically charged HVAC furnace filter media. The first layer is a high capacity, polyester filter material which acts as a pre filter, capturing large airborne particles. The second, more efficient, layer is a MERV rated smooth poly blend filter material. The electrostatic charge works as a magnet to draw in